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Finding the Fourth Proportional to 103,691.70, 155,422.35 and 44,517.30

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Solution

The fourth proportional to 103,691.70, 155,422.35 and 44,517.30 is: 66,726.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,691.70 : 155,422.35 = 44,517.30 : x
  2. Step 2: Convert to fraction form
    103,691.70/155,422.35 = 44,517.30/x
  3. Step 3: Cross multiply
    103,691.70x = 155,422.35 × 44,517.30
  4. Step 4: Simplify right side
    103,691.70x = 6,918,983,381.66
  5. Step 5: Solve for x
    x = 6,918,983,381.66/103,691.70
  6. Step 6: Final answer
    x = 66,726.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.